When interacting in the real world, it is common to remember locations of objects based on our own body previous locations and postures. We propose a technique for navigation and selection in 3D environments which uses an optical tracking system to provide whole-body position and orientation. We explore the peephole metaphor with a tablet PC to artificially enlarge the display and interaction area. In the application implemented to prove the proposed concepts, the tablet is held by the participant who moves it around and points it in any direction for visualization and interaction.